Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 8 - Think and Explain: 63

Answer

The softball.

Work Step by Step

The solid softball has most of its mass closer to a rotational axis passing through its center and has the least rotational inertia relative to its own mass. It will have a greater acceleration than the hollow basketball, and wins the race. By this reasoning, one may conclude (and verify experimentally) that a solid sphere of any mass and size beats a solid cylinder of any mass and size, which in turn beats a hollow ball of any mass and size. This is discussed on page 138.
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